Quote:
Originally Posted by GrimJosef
The 30A5s are very low voltage valves. There's a datasheet here http://datasheets.electron-tube.net/...133/3/30A5.pdf which says "typical operation" is with just 100V across them. The maximum output power is then 2.1W and to get that you have to put up with 11% THD. |
They are intended for use in AA5 type AC/DC radios running from 110V mains. That's why they're such a rarity here.
Paul